Answer:
Moist and warm temperatures
Explanation:
<span>If you overshoot the endpoint in titration of the KHP, an error will happen in your calculations for the molarity of NaOH you are standardizing. For this, a neutralzation reaction happens where amount of acid should be equal to amount of base. Adding more of the base needed to reach the equivalence would mean you have higher volume which will make the calculated concentration of NaOH lesser.</span>
Answer:
- Molality:

- Mole fraction:

Explanation:
Hello,
- Molality: in this case, the solution is formed by 3.7% by mass of sodium chloride and water, thereby, we assume we have 100 g of solution in order to find the mass of sodium chloride as shown below:

Hence, the moles of sodium chloride and kilograms of water are:

With which the molality results:

- Mole fraction: in this case, since we have previously computed the moles of sodium chloride, we now compute the moles of water as:

Thus, the mole fraction of sodium chloride is:

Best regards.
Answer:
The reaction is chemical and endothermic.
Explanation:
The process taking place is a chemical reaction and is exothermic because endothermic means it is making things colder while releasing heat.